Systems and methods for potable water production
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United States of America Patent
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Sep 30, 2014
Grant Date -
Feb 27, 2014
app pub date -
Mar 4, 2012
filing date -
Mar 11, 2011
priority date (Note) -
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Abstract
Systems and methods are disclosed for water collection from atmospheric moisture in large quantities in uncontrolled outdoor environments where the temperature may be cold and humidity levels low. To extract water from air when the dew point is low, a heat exchanger cools to a point where water vapor is deposited on its surface as ice. The heat exchanger then cycles through a heating phase to melt the ice and generate liquid water. The accumulation of frost is advantageous. Frost accumulation enables water collection when the dew point is low. Disclosed variations enhance efficiency and environmental tolerance.
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